/*

 * This file is part of PowerDNS or dnsdist.

 * Copyright -- PowerDNS.COM B.V. and its contributors

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * In addition, for the avoidance of any doubt, permission is granted to

 * link this program with OpenSSL and to (re)distribute the binaries

 * produced as the result of such linking.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#pragma once

#include "config.h"

#include "remote_logger.hh"

#include <atomic>

#include <cstddef>

#include <memory>

#include <vector>

class RemoteLoggerPool : public RemoteLoggerInterface

{

public:

  // this expects a non-empty vector

  RemoteLoggerPool(std::vector<std::shared_ptr<RemoteLoggerInterface>>&& pool);

  RemoteLoggerPool(const RemoteLoggerPool&) = delete;

  RemoteLoggerPool(RemoteLoggerPool&&) = delete;

  RemoteLoggerPool& operator=(const RemoteLoggerPool&) = delete;

  RemoteLoggerPool& operator=(RemoteLoggerPool&&) = delete;

  [[nodiscard]] RemoteLoggerInterface::Result queueData(const std::string& data) override;

  [[nodiscard]] std::string address() const override

  {

    return "";

  }

  [[nodiscard]] std::string name() const override

  {

    return "Pool of " + std::to_string(d_pool.size()) + " loggers";

  }

  [[nodiscard]] std::string toString() override;

  [[nodiscard]] RemoteLoggerInterface::Stats getStats() override

  {

    Stats total_stats;

    for (auto& logger : d_pool) {

      total_stats += logger->getStats();

    }

    return total_stats;

  }

private:

  std::vector<std::shared_ptr<RemoteLoggerInterface>> d_pool;

  std::atomic<size_t> d_counter;

};